A numerical modeling of thermoelastohydrodynamic gas spiral groove face seal behavior is presented. Temperature fields of the fluid film and the seal rings are computed, as they are the elastic and thermal distortions of the rings. Numerical analysis is carried out on a gas spiral groove face seal taking into account of choked flow effect. Analysis results show that both elastic and thermal distortions induce strong influence on the geometry of the fluid film, forming obvious divergent clearance which leads to significant decrease of minimum equilibrium clearance, exceeding 50% in degree. Thermal distortion may induce the same influence degree as elastic distortion on the minimum equilibrium clearance in high pressure cases, but the rotation speed has no obvious influence on the minimum clearance when both elastic and thermal distortions are considered. The thermal distortion as well as elastic distortion should be concerned in high pressure analysis.

References

References
1.
Thomas
,
S.
,
Brunetière
,
N.
, and
Tournerie
,
B.
,
2006
, “
Numerical Modeling of High Pressure Gas Face Seals
,”
ASME J. Tribol.
,
128
(
2
), pp.
396
405
.10.1115/1.2164471
2.
Thomas
,
S.
,
Brunetière
,
N.
, and
Tournerie
,
B.
,
2007
, “
Thermoelastohydrodynamic Behavior of Mechanical Gas Face Seals Operating at High Pressure
,”
ASME J. Tribol.
,
129
(
4
), pp.
841
850
.10.1115/1.2768086
3.
Bupara
,
S. S.
,
Walowit
,
J. A.
, and
Allen
,
C. M.
,
1967
, “
Gas Lubrication and Distortion of High-Pressure Mainshaft Seals for Compressor
,”
Third International Conference on Fluid Sealing
,
Cambridge, England
, Paper No. B3, pp.
29
52
.
4.
Gabriel
,
R. P.
,
1994
, “
Fundamentals of Spiral Grooved Noncontacting Face Seals
,”
Lubr. Eng.
, 50(
3
), pp.
215
224
.
5.
Bai
,
S. X.
,
Peng
,
X. D.
,
Meng
,
Y. G.
, and
Wen
,
S. Z.
,
2012
, “
Modeling of Gas Thermal Effect Based on Energy Equipartition Principle
,”
Tribol. Trans.
,
55
(
6
), pp.
752
761
.10.1080/10402004.2012.706181
6.
Poling
,
B. E.
,
Prausnitz
,
J. M.
, and
O'Connell
,
J. P.
,
2001
,
The Properties of Gases and Liquids
,
5th ed.
,
McGraw-Hill
,
New York
.
7.
Whitson
,
C. H.
, and
Brulé
,
M. R.
,
2000
,
Phase Behavior
,
The Society of Petroleum Engineers, Inc.
,
Richardson, TX
.
8.
Wen
,
S. Z.
, and
Yang
,
P. R.
,
1992
,
Elastohydrodynamic Lubrication
,
Tsinghua University Press
,
Beijing, China
.
9.
San
,
A. L.
, and
Kim
,
T. H.
,
2010
, “
Thermohydrodynamic Analysis of Bump Type Gas Foil Bearings: A Model Anchored to Test Data
,”
ASME J. Eng. Gas Turbines Power
,
132
(
4
), p.
042504
.10.1115/1.3159386
10.
Zuk
,
J.
,
Ludwig
,
L. P.
, and
Johnson
,
R. L.
,
1971
, “
Compressible Flow Across Shaft Face Seals
,”
Fifth International Conference on Fluid Sealing
, BHRA, Coventry,
England
, Mar. 30–Apr. 2, Paper No. FICFS-H6.
11.
Zuk
,
J.
,
1973
, “
Analysis of Face Deformation Effects on Gas Film Seal Performance
,”
ASLE Trans.
,
16
(
4
), pp.
267
275
.10.1080/05698197308982732
12.
Wang
,
X. C.
,
2003
,
Finite Element Method
,
Tsinghua University Press
,
Beijing, China
.
You do not currently have access to this content.